Phoenix Weather in May: Climate, Temperature & Travel Tips
Avg 27.8°C · 4mm rain — May is spring in Phoenix.
- Avg high
- 34.8 °C
- Avg low
- 20.7 °C
- Avg
- 27.8 °C
- Precipitation
- 4 mm
Source: Open-Meteo Archive 2014–2023 · 10-year climate normals
Climate Overview
May in Phoenix, United States brings spring conditions: average temperature 27.8°C, average high 34.8°C, average low 20.7°C. Monthly rainfall averages 4mm, making it a very dry time of year.
Plan outdoor activities around midday heat with shade and frequent hydration.
What to Pack
- Lightweight breathable clothing; sun hat
- Sunscreen and ample hydration
Best Things to Do
- Visit outdoor sights in early morning or late afternoon
- Air-conditioned museums and galleries
- Pool or waterfront activities
Pros and Cons of Visiting in May
Pros:
- Low rainfall — minimal disruption to outdoor plans
- Shoulder season often means smaller crowds and lower prices
Cons:
- Hot weather may limit midday outdoor activities
Climate source: Open-Meteo Archive (2014–2023).
Colour = avg temperature · blue = cool · orange = warm
- 1 July 35.2°C
- 2 August 34.6°C
- 3 June 33.0°C
- 1 December 13.2°C
- 2 January 13.8°C
- 3 February 15.6°C
FAQ
01 What is the average temperature in Phoenix in May? +
The average is 27.8°C, with a high of 35°C and a low of 21°C.
02 What is Phoenix like to visit in May? +
It is spring in Phoenix, which is hot — plan around midday heat.
03 Does it rain often in Phoenix during May? +
Average rainfall is 4mm, which is very dry.
04 What should I pack for Phoenix in May? +
Lightweight breathable clothing; sun hat; Sunscreen and ample hydration.
05 Is May a peak travel season for Phoenix? +
It is closer to off-season, with more reasonable prices and fewer crowds.
06 Where does this climate data come from? +
Monthly averages computed from Open-Meteo Archive 2014–2023 daily observations.
- Sources
- Open-Meteo Archive 2014-2023
- Updated
- 2026-04-17